#define _CRT_SECURE_NO_WARNINGS 1
#include"Head.h"

class Solution {
public:
    char findTheDifference(string s, string t) {
        int diff = 0;
        for (auto e : t)
        {
            diff += e;
        }
        for (auto e : s)
        {
            diff -= e;
        }
        return char(diff);
    }
};